something of a consensus inquiry (for lack of a better definition). About 10 days ago a very quick & brief electrical outage (like for one second or less) occurred while three Mac Pros 1,1 & one PowerMac 7,3 (Mid 2004 2.0 DP PCI-X 2) were running. The PM G5 wasn't crunching but downloading. Outages aren't a common thing where I live. I use common surge extensions cords. I've never bothered with a UPS (not a real excuse, I know). The Mac Pros shrugged off the outage and rebooted fine. Well, the G5 won't boot. This model PM G5 doesn't have the diagnostic LEDs next to the RAM slots. Googled for same experiences & tried ALL the troubleshooting advice (MacRumors, Apple Discussions, etc) except actually buying a brand new battery. I did try batteries from working PowerMacs and checked the batteries' voltage (within range) with a multi-meter. No joy in getting the PM G5 to boot. When pressing the start-up button - the "small hole" above the button lights-up, but it instantly goes off when button is released. I do hear start-up fans and some kinda loud "whooosh" noise. I figure the PSU got hit bad, tho could be logic board, dunno really. So this PM G5 is a parts/fix-it & wait-around-in-storage unit right now. Granted, I know I'm speaking of a 12 year-old machine. But what I wanna know is how many folks here experienced the same PM G5 outage scenario and couldn't get their machines to reboot - even after the standard troubleshooting advice, short of a new PSU or logicboard. Meaning, perhaps PM G5 owners should pay extra attention to outage problems?